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Buy this: https://brushelectronics.com/software/fat-file-system-for-microchip-microcontrollers/

I have no affiliation with Brush Electronics; I am a customer. I can tell you that the driver works a ...

I'm actually finishing up a VT100 user interface. I like RealTerm for the PC side.

I prefer a static screen as opposed to scrolling, but that's just me. VT100 command codes suit me fine.

Then just load the period register (PR2) only.

#byte PR2 = getenv("SFR:PR2")

And inside your ISR, if appropriate,

PR2 = new_PR2_value;

Enable the timer 2 interrupt. When a command to change settings is received, instead of changing the timer settings immediately, set a flag: new settings are available.

Inside the ISR, if that flag ...

Some thoughts. I tend not to embed bit manipulations inside other function calls with any compiler because of some painful memories from decades ago. That was the first thing that popped into my head: ...

10K is a lot smaller than recommended. Minimum recommended is 22K...
10K was the recommended value back in the ICD2 days. These were able
to drive a lower resistor.
The help for the ICD-U80 recomme ...

Do you have the watchdog enabled?

When high speed is invoked, implement some sort of timer ASAP. Clock source will be the 4MHz clock.

Simply use that timer to count.

When it's time to go back to sleep, calculate how many 31kHz t ...

Quite some time ago I cobbled together a 320 x 480 TFT display with capacitive touch screen overlay (qty 1000 cost was somewhere in the neighbourhood of $10) to an FTDI EVE touch screen controller and ...

What is your compiler version?

Happens to us all. Glad you have it sorted.

Open/edit the device.h file (first line of your program) for your processor. Near the top will be a #nolist. Comment that out, save. The compiler will complain about editing that file and will ask if ...

I've created plenty of dsPIC33 based projects with tweaked interrupt priority levels. From memory I believe it's as simple as adding a "LEVEL = 5" to the ISR. It's in the manual.

There we ...

The glib answer would be to place the UART interrupt at a higher priority than the USB. But that may cause problems to pop up with the USB. It could also, squeezing a stress ball style, cause some new ...

Check the C:\Program Files (x86)\PICC\Devices folder to see if that processor is present.

If it is, I've had issues in the past with a failing SSD and CCS. A clean reinstall would get it working fo ...